Raymarine Dragonfly-5M Navionics+ GPS 5" All-weather, high-definition LED backlit displayOptically bonded display for sharp color, wide viewing angles, and no internal fogging Precision guidance using a 50-channel fast acquisition internal GPS sensor Simple to use; Power on and become a Dragonfly expert in minutes Ball and socket tilt swivel mount lets you mount Dragonfly easily on any surface Internal storage for 3000 waypoints and 15 tracks; Use optional microSD memory cards for expanded storage